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Model A1286. Released February 2011 / 2.0, 2.2, or 2.3 GHz Quad-core Intel Core i7 Processor

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MacBook Pro that shuts down without warning has now escalated

I own a

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After, in April 2018 I replaced the battery with an iFixit

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I started having trouble with it shutting down randomly with on battery and on charger. I retrospect I have noticed that the past several months, the battery would drain quickly. Although I was not doing anything exotic, I thought it was me. The battery shows

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and

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. Clicking on battery icon

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. One solution was to reset the SMC, which I did. Problem still exists although it seems like it works properly with the charger plugged in. The battery being only 13 months old, I am concerned it is not the problem and reluctant to spend $70 bucks to find out (I bought the tools the last time) :-)

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Hello

If you can reset the SMC + PRAM ok and have never spilled liquid on your machine.

I’d say your problem is the thermal paste on your cpu / gpu is dry, has dried out, as its an old machine.

And needs replacing quick i.e a good service is needed. Clean out the rear fan grills also of fluff and hairs etc.

Your machine is shutting down because it is hot. Shutting down is a safety feature.

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Pete Banks sera éternellement reconnaissant.
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